Home / 860,064.46-1,290,145.92-261,045.16

Finding the Fourth Proportional to 860,064.46, 1,290,145.92 and 261,045.16

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Solution

The fourth proportional to 860,064.46, 1,290,145.92 and 261,045.16 is: 391,582.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,064.46 : 1,290,145.92 = 261,045.16 : x
  2. Step 2: Convert to fraction form
    860,064.46/1,290,145.92 = 261,045.16/x
  3. Step 3: Cross multiply
    860,064.46x = 1,290,145.92 × 261,045.16
  4. Step 4: Simplify right side
    860,064.46x = 336,786,348,109.75
  5. Step 5: Solve for x
    x = 336,786,348,109.75/860,064.46
  6. Step 6: Final answer
    x = 391,582.68

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.